OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssh | Openbsd | * | 8.7 (including) |
| Openssh | Ubuntu | bionic | * |
| Openssh | Ubuntu | devel | * |
| Openssh | Ubuntu | esm-infra-legacy/trusty | * |
| Openssh | Ubuntu | esm-infra/bionic | * |
| Openssh | Ubuntu | esm-infra/xenial | * |
| Openssh | Ubuntu | fips-updates/bionic | * |
| Openssh | Ubuntu | fips-updates/focal | * |
| Openssh | Ubuntu | fips-updates/xenial | * |
| Openssh | Ubuntu | fips/bionic | * |
| Openssh | Ubuntu | fips/focal | * |
| Openssh | Ubuntu | fips/xenial | * |
| Openssh | Ubuntu | focal | * |
| Openssh | Ubuntu | hirsute | * |
| Openssh | Ubuntu | impish | * |
| Openssh | Ubuntu | jammy | * |
| Openssh | Ubuntu | trusty | * |
| Openssh | Ubuntu | trusty/esm | * |
| Openssh | Ubuntu | upstream | * |
| Openssh | Ubuntu | xenial | * |
| Openssh-ssh1 | Ubuntu | bionic | * |
| Openssh-ssh1 | Ubuntu | devel | * |
| Openssh-ssh1 | Ubuntu | esm-apps/bionic | * |
| Openssh-ssh1 | Ubuntu | esm-apps/focal | * |
| Openssh-ssh1 | Ubuntu | esm-apps/jammy | * |
| Openssh-ssh1 | Ubuntu | focal | * |
| Openssh-ssh1 | Ubuntu | hirsute | * |
| Openssh-ssh1 | Ubuntu | impish | * |
| Openssh-ssh1 | Ubuntu | jammy | * |
| Openssh-ssh1 | Ubuntu | upstream | * |